Administrative Stuff

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1 Assignment Administrative Stuff Prediction don t have to do KLM Quantitative measure see edited version, explain what you would use Presentation outline get it to me by tonight! Prototype purpose is to sell your idea!

2 Design Patterns Irene Rae Computer Sciences CS-570 Introduction to Human-computer Interaction

3 A pattern is a careful description of a perennial solution to a recurring problem Christopher Alexander

4 Architecture Patterns Proposed by Christopher Alexander in 1977 Provide a source of proven ideas for constructing environments Problems have 2 parts: Forces that act in them Solutions that resolve forces

Patterns: Elements of Reusable Object- Oriented Software

5 Software Architecture Patterns Proposed in 1987 by Beck and Cunningham Gained popularity in 1994 Design Patterns: Elements of Reusable Object- Oriented Software Speeds up development Uses tested paradigms to avoid later problems

6 Design Patterns Design patterns are a means of capturing useful design solutions and generalizing them to address similar problems. (Cooper) Responding to the dynamics of the user Not meant to be used as is Implementation will always differ!

7 Why do we need them? Saves time in designing new solutions Provides some guarantees as to usefulness of the solution Consistency across product lines/computers/etc. Effective reference tool

8 Example Need What if you need to design an interface to play a movie?

9 Variations of the same pattern

10 Other Examples

11 What makes a pattern? Pattern name Problem Solution Reasons solution is effective Best practices Related patterns Comments Research evidence Change log

12 Example Name Problem, Solution, Reasons, Best Practices Related Patterns Example

13 An Accordion

14 Accordion: Problem Problem: Large, disorganized body of information Solution: An accordion is a grouped set of collapsible panels that the user can open and close by hovering on or clicking on the title of a specific panel Reasons: An accordion allows organizing the content into logical, titled sections in a space-saving way. Best Practices: Accordions usually work best when the user can have only one section open at a time and each section is independent from each other. When the panels provide parallel context (for example search filters), allowing users to have several sections visible simultaneously might be a good idea.

15 Types of Patterns Postural Applied to determine the overall product stance in relation to the user Structural Related to the arrangement of information and elements Behavioral Related to specific interactions with information or elements

16 Postural Patterns Applied to determine the overall product stance in relation to the user Think genre or type Decides which structure is used, elements, and experience offered Examples: Designing a sports car vs. a family car Designing a corporate website vs. a personal website Microsoft Word vs. Notepad

17 Structural Related to the arrangement of information and elements

18 More Structural Examples

19 Behavioral Patterns Related to specific interactions with information or elements People behave predictably! 14 human patterns

20 Behavioral Pattern Safe exploration Instant gratification Key Points Users feel safe trying unknown functionality. No dire consequences or annoyances. The more the user succeeds, the more likely they are to continue using the product. Introductory functionality should not be hidden. User Perspective Let me explore without getting lost or getting into trouble. I want to accomplish something now, not later.

21 Behavioral Pattern Satisficing Changes in midstream Key Points Satisfying + sufficing People willing to accept good enough if learning is costly. Users pick what they see first to satisfy their goal. Users may change what they re doing part way through, allow to modify. User Perspective This is good enough. I don t want to spend more time learning to do it better. I changed my mind about what I was doing.

22 Behavioral Pattern Key Points User Perspective Incremental construction Users prefer to repeatedly make changes or updates. Let me change this. That doesn t look right; let me change it again. That s better. Habituation Support habitual conventions. That gesture works everywhere else, why not here? Microbreaks Make activities fast and easy to reach. Particularly important in mobile devices! I am waiting for the train, let me do something useful for 2 minutes.

23 Behavioral Pattern Spatial memory Prospective memory Key Points People remember documents by location, not name. Users use interfaces in unique ways to remind themselves. Allow interfaces to be flexible in how they re used. User Perspective I swear that button was there a minute ago. Where did it go? I m putting this here to remind myself to deal with it later.

24 Behavioral Pattern Streamlined repetition Keyboard only Key Points Users may need to perform the same operation over and over. Some users (for a variety of reasons) prefer the keyboard. Implement keyboard redundancy for mouse functions. User Perspective I have to repeat this how many times? Please don t make me use the mouse.

25 Behavioral Pattern Other people s advice Personal recommendations Key Points Users are influenced by their peers. Support a social component. Support person-to-person sharing of content. Three key questions: 1. What are they sharing? 2. Who do they share it with? 3. What are the design implications of this? User Perspective What did everyone else say about this? My friend told me to read this, so it must be good.

26 How to use patterns Not to be used as is! Design considerations: Goals/needs of the user Consistency across application/product lines Visual consistency

27 Breadcrumbs

28 Breadcrumbs Analysis Problem Solution Reasons the solution is effective Best practices

29 Navigation Tabs

30 Navigation Analysis Problem Solution Reasons the solution is effective Best practices

31 Carousels

32 Carousel Analysis Problem Solution Reasons the solution is effective Best practices

33 Resources

34 Questions?

35 TopHat Question

ROBINS FREQUENTLY ASKED QUESTIONS

ROBINS FREQUENTLY ASKED QUESTIONS Table of Contents A) Initial Set Up and Logging In, including Password Issues... 2 B) Browser Problems/Filters... 6 C) Income Viewing and Reporting... 7 D) Ordering Stock... 9 E) Managing Box Sites...